Mercurial > templog

annotate rust/src/config.rs @ 639:89818a14648b rust tip

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- switch to using anyhow for errors, surf for http runs but surf has problems
author Matt Johnston <matt@ucc.asn.au>
date Thu, 28 Nov 2019 23:57:00 +0800
parents 43eb3cfdf769
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 use serde::{Serialize,Deserialize};
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2 use anyhow::{Context, anyhow, Result, Error};
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4 #[derive(Deserialize,Serialize,Debug,Clone)]
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5 pub struct Config {
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6 pub sensor_sleep: u64,
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7 pub upload_sleep: u64,
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8
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9 pub fridge_delay: u64,
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10 pub fridge_wort_invalid_time: u64,
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12 pub max_readings: u32,
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13
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14 pub params_file: String,
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16 pub sensor_base_dir: String,
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17 pub fridge_gpio_pin: u32,
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18
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19 pub ambient_name: String,
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20 pub fridge_name: String,
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21 pub wort_name: String,
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22 pub internal_temperature: String,
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23
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24 pub hmac_key: String,
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25 pub server_url: String,
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26 pub update_url: String,
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27 pub settings_url: String,
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28 }
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30 impl Config {
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31 pub fn default_toml() -> &'static str {
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32 include_str!("defconfig.toml")
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33 }
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34
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35 pub fn load(conf_file: &str) -> Result<Self> {
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36 let mut c = config::Config::default();
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37 c.merge(config::File::from_str(Self::default_toml(), config::FileFormat::Toml)).expect("Bad default config");
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38 c.merge(config::File::with_name(conf_file)).or_else(|e| {
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39 Err(match e {
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40 config::ConfigError::NotFound(_) => anyhow!("Missing config {}", conf_file),
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41 // XXX this is ugly, why won't e.with_context() work?
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42 _ => Error::new(e).context(format!("Problem parsing {}", conf_file)),
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43 })
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44 })?;
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45 c.merge(config::Environment::with_prefix("TEMPLOG"))
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46 .context("Failed loading from TEMPLOG_ environment variables")?;
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47 Ok(c.try_into().with_context(|| format!("Problem loading config {}", conf_file))?)
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48 }
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49 }